Reason is the most outstanding characteristic of the human being.

He is considered the father of ancient psychology.

Gives rise to associationism

"I think, therefore I am" (the act of thinking proves that a thinker exists)

He defined psychology as the science of consciousness.

Established dichotomy

Ideas come from two sources: sensation and reflection.

Other sources are the senses and perception.

The foundation of our knowledge is experience.

The secession of ideas in the human being is usually irrational.

I postulate his theory of the four liquids.

He tried to explain the origin of mental illness.

He argued that reason was used to distinguish between good and evil.

For Socrates, the real knowledge comes from inside.

He is credited with the method of maieutic.

Encouraged dialogue to spark ideas.

He argued that the human being is divided into body and soul.

He considered the existence of the soul before being present in the body.

He believed in reincarnation, rewards, and punishments